BLIS* limitations
BLIS1 functionality may be reduced in certain situations.
![Px-2122-S-Keep sensor area clean rear](https://www.volvocars.com/images/support/imge780952b972b5f0ec0a801525866f8b3_1_--_--_VOICEpnghigh.png?imwidth=1280)
Examples of limitations:
- Dirt, ice and snow covering the sensors may reduce functionality and prevent the system from providing warnings.
Warning
- BLIS does not work in sharp curves.
- BLIS does not work when the vehicle is being reversed.
Note
The function uses the vehicle's radar sensors, which have certain general limitations.